HV2809 is a low harmonic distortion, 32-channel, high voltage analog switch integrated circuit (IC), designed for use in medical ultrasound imaging systems as a probe selection relay replacement. It serves as a 16PDT (16-pole, double throw) high voltage analog switch array. The enable function allows the parts to be configured as either a 2:1 or 4:1 multiplexer/demultiplexer. The HV2809 is a very fast transducer multiplexer that consumes minimal power and emits no audible noise. Using HVCMOS technology, this device combines high voltage bilateral DMOS switches and low power CMOS logic to provide efficient control of high voltage analog signals. The device is suitable for various combinations of high voltage supplies, e.g., VPP/VNN: +40V/-160V, +100V/-100V, and +160V/-40V.The HV2809 comes in an 8.0mm x 8.0mm x 1.0mm, 56-Lead QFN package. Compared to an electromechanical relay, it not only saves considerable PCB area, but also saves on the PCB assembled height.

  32-channel high voltage analog switch

  2:1 multiplexer/demultiplexer

  Enable control for all-OFF state

  3.3 or 5.0V CMOS input logic level

  HVCMOS technology for high performance

  Very low quiescent power dissipation, 10µA

  Low parasitic capacitance

  DC to 50MHz analog signal frequency

  -60dB typical OFF-isolation at 5.0MHz

  CMOS logic circuitry for low power

  Excellent noise immunity

  Flexible operating supply voltages

  56-Lead 8x8 QFN package